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Start Over You searched for: Subject Botany Remove constraint Subject: Botany Year 1920 to 1924 Remove constraint Year: <span class="from" data-blrl-begin="1920">1920</span> to <span class="to" data-blrl-end="1924">1924</span>

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Graceanna Lewis natural history papers, 1869-1890 (bulk) 1869-2006 (inclusive)

Held at: Delaware County Institute of Science [Contact Us]

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Edwin C. Jellett papers, 1874-1931 (inclusive)

Held at: Germantown Historical Society [Contact Us]

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John and Lydia Morris estate papers, 1886-1932 (bulk) 1854-1932 (inclusive)

Held at: Morris Arboretum Archives [Contact Us]

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Morris Arboretum of the University of Pennsylvania Historic Image Collection, 1885-1950 (bulk) 1885-2000 (inclusive)

Held at: Morris Arboretum Archives [Contact Us]

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Samuel C. (Samuel Copeland) Palmer Papers, 1895-1957 (inclusive)

Held at: Friends Historical Library of Swarthmore College [Contact Us]

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Jeannette Meehan Anderson collection on Thomas Meehan, 1985-1994 (bulk) 1890-1994 (inclusive)

Held at: Germantown Historical Society [Contact Us]

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Hui-lin Li Papers, 1831-2002 (inclusive)

Held at: University of Pennsylvania: University Archives and Records Center [Contact Us]

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T. Chalkley Palmer natural science teaching collection, circa 1880-1930

Held at: Delaware County Institute of Science [Contact Us]

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Delaware County Institute of Science herbaria collection, 1833-1910 (bulk) 1833-2010 (inclusive)

Held at: Delaware County Institute of Science [Contact Us]

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Dr. Edgar T. Wherry botanical lantern slides, circa 1924-1976

Held at: Morris Arboretum Archives [Contact Us]